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公开(公告)号：US4500717A
公开(公告)日：1985-02-19
申请号：US479400
申请日：1983-03-28
申请人： Frank T. Cook , Michael O. Nutt , Hsin H. Hsieh
发明人： Frank T. Cook , Michael O. Nutt , Hsin H. Hsieh
IPC分类号： C07D263/22
CPC分类号： C07D263/22
摘要： The invention is a process for the preparation of 2-oxazolidinones which comprises contacting a 2-hydroxyalkyl carbamate with an alkylene oxide or alkylene carbonate in the presence of a catalytic amount of a quaternary ammonium halide, quaternary phosphonium halide, a group I metal carbonate, hydroxide, oxide or halide, or a group II metal carbonate, hydroxide, oxide or halide under conditions such that a 2-oxazolidinone is prepared.
摘要翻译： 本发明是制备2-恶唑烷酮的方法，其包括在催化量的季铵卤化物，季卤化鏻，第I族金属碳酸盐存在下使氨基甲酸2-羟烷基酯与烯化氧或碳酸亚烃酯接触， 氢氧化物，氧化物或卤化物，或第II族金属碳酸盐，氢氧化物，氧化物或卤化物，以制备2-恶唑烷酮。
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2.发明授权
公开(公告)号：US5491263A
公开(公告)日：1996-02-13
申请号：US171039
申请日：1993-12-21
申请人： Peter C. Rooney , Michael O. Nutt
发明人： Peter C. Rooney , Michael O. Nutt
IPC分类号： C07C209/16 , C07C209/62 , C07C213/08 , C07D295/13 , C07C211/10
CPC分类号： C07D295/13 , C07C209/16 , C07C209/62 , C07C213/08
摘要： A process is disclosed for producing a substituted ethylenediamine, the process comprising reacting an oxazolidinone with a secondary amine or an alkanolamine. The process includes, in one aspect, reacting precursors of the oxazolidinone in situ.
摘要翻译： 公开了制备取代乙二胺的方法，该方法包括使恶唑烷酮与仲胺或链烷醇胺反应。 该方法在一个方面包括原位处理恶唑烷酮的前体。
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公开(公告)号：US20120078012A1
公开(公告)日：2012-03-29
申请号：US12892348
申请日：2010-09-28
摘要： A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid.
摘要翻译： 一种生产乙酸的方法，包括以下步骤：使一氧化碳与甲醇和甲醇衍生物中的至少一种在有效产生粗乙酸产物的条件下在第一反应器中反应; 将粗乙酸产物分离成至少一种衍生物流，所述至少一种衍生物物流中的至少一种包含残余的一氧化碳; 以及在第二反应器中使至少一部分残留的一氧化碳与甲醇和甲醇衍生物中的至少一种在金属催化剂上反应，以产生另外的乙酸。
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4.发明授权Removal of P.sub.2 O.sub.5 from aluminum fluoride enriched crystallization mother liquors 失效从氟化铝富集的结晶母液中除去P'2'O'5'
公开(公告)号：US3965248A
公开(公告)日：1976-06-22
申请号：US496447
申请日：1974-08-12
摘要： Aqueous AlF.sub.3 enriched crystallization mother liquors contaminated with P.sub.2 O.sub.5 values and having less than 5% free acidity are treated with a material which provides bismuth ions in the mother liquor in amounts small enough to insure that the Bi/PO.sub.4 mole ratio remains below about 1.05. Under these conditions, the bismuth and P.sub.2 O.sub.5 react essentially quantitatively to form a BiPO.sub.4 precipitate by which the P.sub.2 O.sub.5 can be separated from the mother liquor. Bismuth can be regenerated from the BiPO.sub.4 and recycled for further use in the process.The invention finds utility in the preparation of AlF.sub.3 by the reaction of an aluminum ore and P.sub.2 O.sub.5 contaminated HF or H.sub.2 SiF.sub.6 such as that available as a by-product of wet process phosphoric acid manufacture. The AlF.sub.3 reaction product is recovered by a crystallization step which, because it is normally only about 70 to 90% efficient, produces a mother liquor containing substantial amounts of AlF.sub.3. For economic reasons, this mother liquor is usually recycled to the process. However, the P.sub.2 O.sub.5 introduced with the HF or H.sub.2 SiF.sub.6 reactant appears in the AlF.sub.3 enriched mother liquor and prevents recycle of the mother liquor for fear of contaminating the AlF.sub.3 product with P.sub.2 O.sub.5. The bismuth treatment of the present invention permits the recycle of the mother liquor to recover its AlF.sub.3 content by reducing the P.sub.2 O.sub.5 level, without leaving undesirably high levels of bismuth contaminants in the recycled mother liquor.
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公开(公告)号：US08394988B2
公开(公告)日：2013-03-12
申请号：US12892348
申请日：2010-09-28
IPC分类号： C07C51/12
摘要： A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid.
摘要翻译： 一种生产乙酸的方法，包括以下步骤：使一氧化碳与甲醇和甲醇衍生物中的至少一种在有效产生粗乙酸产物的条件下在第一反应器中反应; 将粗乙酸产物分离成至少一种衍生物流，所述至少一种衍生物物流中的至少一种包含残余的一氧化碳; 以及在第二反应器中使至少一部分残留的一氧化碳与甲醇和甲醇衍生物中的至少一种在金属催化剂上反应，以产生另外的乙酸。
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公开(公告)号：US4304724A
公开(公告)日：1981-12-08
申请号：US219292
申请日：1980-12-22
申请人： Michael O. Nutt
发明人： Michael O. Nutt
CPC分类号： C07C46/00
摘要： The present invention provides a process for making anthraquinone by the cyclization reaction of orthobenzoylbenzoic acid. The process uses as a catalyst a cation-exchange resin formed from a polymer with a polytetrafluoroethylene backbone and sulfonic-acid sidechains.
摘要翻译： 本发明提供通过邻苯甲酰基苯甲酸的环化反应制备蒽醌的方法。 该方法使用由具有聚四氟乙烯主链和磺酸侧链的聚合物形成的阳离子交换树脂作为催化剂。
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